I understand that the answer might be that there is nothing I can do, but I'm asking since I would really like to complete it...
I am in Shivering Isles since Hour 166 (in my save file). I have had CTD before, but nothing that was "constant". I would reload and continue playing without problems.
I am now in Cylarne, just before the battle between the gold and dark people, and the game crashes everytime (I've been doing the battle 5-6 time). I was able to complete it once, but it crashed a little bit after.
I have reloaded from a save file I made when I arrived at that place, and replayed the part. The game crashes (tried more than once).
I have reloaded from the save file. If I move to Bliss, it crashes. If I walk to Bliss, it crashes (afer a couple minutes of walking).
I have since installed the 4GB patch and Oblivion Stutter Removal, but the problem remains.
I have not installed mods about Shivering Isles (except the Unofficial Patch), and I have not installed mods since entering SI.
I have rebooted my computer and tried playing the game without not other programs running, but it still crashes.
Is there something else I could try?
Edit : The Version of Oblivion is 1.2.0416.
I thought it could be the Reference bug, but I drop arrows while walking away from Cylarne, and the IDs were FF0123AA, FF0123AE, FF0123B8, then I crashed a little bit after the last arrow.